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Testing whether gut hormones explain benefits of gastric bypass surgery

Tests gut hormones in adults with obesity and diabetes after gastric bypass.

Plain-language title generated from the registry record
Registry title: Gut Hormones and Roux en Y Gastric Bypass

Key facts

Where
London, United KingdomSee the site

Could this be for you?

Answer for yourself. This is not a decision: only the study team can say whether you can take part.

  • Are you between 18 and 70 years old?

Source: NCT01945840, who can take part

Where in United Kingdom

  • NIHR/Wellcome Trust Imperial CRF, Hammersmith HospitalLondon, United KingdomTaking people

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?
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Trial details

Who runs it
Imperial College London
Trial code
NCT01945840
Record updated
20 April 2021
Original description
The purpose of this study is to assess whether the changes in gut hormones seen following Roux en Y Gastric Bypass surgery are responsible for some of the beneficial effects seen post-operatively.Read full original descriptionShow less

Do Gut Hormones Mediate the Beneficial Effects of Roux-en-Y Bypass?

The purpose of this study is to assess whether the changes in gut hormones seen following Roux en Y Gastric Bypass surgery are responsible for some of the beneficial effects seen post-operatively.

Inclusion: Aged 18 - 70 years; Male or female; Eligible for bariatric surgery under the NHS; Diagnosed with impaired glucose regulation or type 2 diabetes, according to WHO 2011 criteria; Those with diabetes should be stable and well controlled with either diet or one oral hypoglycaemic agent; HbA1c ≤9.0% or 74.9 mmol/mol.

Exclusion: Volunteers on anti-coagulants such as warfarin and factor Xa inhibitors will not undergo adipose tissue biopsy; Previous bariatric surgery; Unable to undergo fMRI due to:; Claustrophobia; Pacemaker, metal implant, clips, implanted device, shrapnel or bullet, metal in eyes that precludes magnetic resonance imaging; Significant structural abnormality on magnetic resonance brain scan; History of any medical, psychological or other condition, or use of any medications, including over-the-counter products, which, in the opinion of the investigators, would either interfere with the study or potentially cause harm to the volunteer; History of hypersensitivity to any of the components of the subcutaneous infusions; Uncontrolled hypertension; Any other co-morbidity that would compromise the validity of the study or the safety of the participant such as heart failure, clinically apparent cardiovascular disease; Without access at home to a telephone or other factor likely to interfere with ability to participate reliably in the study; Pregnancy or breastfeeding; Smokers; Unable to maintain adequate contraception for the duration of the study and for one month afterwards; Donated blood during the preceding 3 months or intention to do so before the end of the study; Insulin treatment; Unable to give informed consent.

ClinicalTrials.gov NCT01945840